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Hyperproof is one of the first systems to permit and encourage reasoning across heterogeneous media. Its advocates argue that it has merits over and above the obvious pragmatic and cognitive ones. This paper suggests analysing Hyperproof-like systems in terms of languages interpreted over a common conceptual scheme and translation relations between logical expressions in such languages. This analysis shows that, despite initial appearances, Hyperproof has no real theoretical merits apart from its admittedly important pragmatic advantages.

Hyperproof is one of the first systems to permit and encourage reasoning across heterogeneous media. Its advocates argue that it has merits over and above the obvious pragmatic and cognitive ones. This paper suggests analysing Hyperproof-like systems in terms of languages interpreted over a common conceptual scheme and translation relations between logical expressions in such languages. This analysis shows that, despite initial appearances, Hyperproof has no real theoretical merits apart from its admittedly important pragmatic advantages.